LT1-LT4 Modifications 1993-97 Gen II Small Block V8

car barely runs and cuts out bad????

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Old 02-15-2007, 11:53 PM
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Default car barely runs and cuts out bad????

ok so i just got the car its a 94 z with a 383....well had it about two weeks and it started to do this...it starts banging out and cuttin out real bad like a spark plug miss or a fuel problem it back fires real bad when it starts to do this and gets worse the longer you drive....well i replaced the wires, fuel filter, plugs,and on monday i replaced the opti spark with a genuine ac delco one ran a little better for 3 days with a small miss then it started to get worse and worse, today started to die a few times im kinnda stumped what should i do or where should i go from here????
Old 02-16-2007, 12:01 AM
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I could be wrong but knowing that you did all of that could it need major internal clensing. Maybe you need to SEAFOAM the car.
Old 02-16-2007, 08:39 PM
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unhook your maf and drive it for alittle bit and post up what happens.
Old 02-17-2007, 01:03 AM
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sd mode is also more conservitive on fuel and timing.
Old 02-17-2007, 08:49 AM
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you can drive forever w out a maf and the car will run fine!
Old 02-17-2007, 10:47 AM
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Originally Posted by LT14MULAWS-6
you can drive forever w out a maf and the car will run fine!
You can but why would you. It makes more sense to fix the problem.
Old 02-17-2007, 11:12 AM
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ok so i put my friends maf on last night ran worse my mustang did what yall are talkin bout and i unpluged it ran better so i changed and fixed problem....so i will try to unplug it on the camaro today
Old 02-17-2007, 03:57 PM
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Once you have done that, if it still runs like crap check your map sensor. SD like i said before is more conservitive on fuel and spark advance so if unhooking it makes it better then you know its probley a spark issue. There is still the chance of fuel problems but that should have been the first thing you checked.



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